ALEZIO REVERSIBLE AIR/WATER HEAT PUMPS SPLIT INVERTER CONDITIONS OF USE

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1 ALEZIO REVERSIBLE AIR/WATER HEAT PUMPS SPLIT INVERTER AWHP -II/E.: from to kw with additional heating by integrated electrical resistance AWHP -II/H: from to kw with additional hydraulic heating by boiler (or without additional heating) ALEZIO AWHP MR-II ALEZIO AWHP 8 MR-II ALEZIO AWHP to TR/MR-II Heating by radiators, underfloor heating/cooling or air conditioning by fan-convectors. Management of DHW Heat pump air/water Electricity (energy supplied to the compressor) Natural renewable energy free of charge ALEZIO heat pumps stand out because of their performance: COP of. to. for an outside temperature of + C (EER of. to. for an outside temperature of + C). High tech products with an INVERTER compressor and power receiver, ALEZIO heat pumps offer improved set temperature stability, a significant reduction in electricity consumption and silent running. Thanks to their reversibility and the option of producing a cooling effect (underfloor cooling type, water at +8 C) or air-conditioning (by fan-convectors, water at + C), ALEZIO heat pumps offer absolute comfort at all times of year. With their compact construction, modern design and simple installation, they can be easily incorporated into a new build or existing environment. CONDITIONS OF USE Limit operating temperatures - in heating mode: Outside air: - /+ C Water: + 8/+ C - in cooling mode: Outside air: + /+ 0 C Water: + /+ C Maximum operating pressure: bar EASYLIFE

2 PRESENTATION OF ALEZIO - HEAT PUMPS INTRODUCTION ALEZIO heat pumps are of the Split Inverter type. Thanks to its integrated control system, the inverter system with Power receiver can be used to adapt the output of the heat pump perfectly to the needs of the installation. Thus, when needs are high in winter, the heat pump can provide its nominal output and, when needs are lower, the heat pump can provide only 0% of its nominal output. With the inverter system with Power receiver, electricity consumption is controlled and the COP improved. The connection between the outdoor unit and the indoor module is made by the refrigeration piping containing refrigerant. INVERTER TECHNOLOGY WITH POWER RECEIVER This technology offers: - Optimal operation at low outside temperatures, up to - C, by accepting a high condensation temperature whilst preventing excessive overheating on compressor discharge. - Maintenance of heating output with a high mass flow rate thanks to the use of a second expansion valve to control excessive cooling and to improve calorific recycling at lower evaporation temperatures. Double expansion and power receiver -way valve Principle diagram of heat pumps Evaporator Outdoor unit Compressor Expansion valve - An increase in operating time in heating mode and a reduction of short cycles thanks to the inverter system which is used to adapt compressor output (from 0% to 00%) to the needs of the installation and control electricity consumption. - Reduction of the defrosting time by a control system and a large surface area on the outdoor exchanger. - A faster rise in temperature in the refrigerant fluid, preventing any risk of liquid surge at the compressor intake thanks to the Power receiver. Pressure P (MPa) Refrigeration cycle Heating output Refrigerant piping Indoor module Condensor PAC_F00A Compressor Power receiver "Additional" sub-cooling Expansion A Expansion B Outdoor unit THE VARIOUS MODELS AVAILABLE Heating by radiators or underfloor heating/cooling PAC_Q00 Reversible air/water heat pump for outside temperatures up to - C Back-up type Output Electrical by resistance Hydraulic by boiler Heating Cooling single phase three phase (or without back-up) kw () kw () AWHP MR-II/EM AWHP MR-II/H.0. AWHP 8 MR-II/EM AWHP 8 MR-II/H 8.. AWHP MR-II/H AWHP MR-II/EM AWHP TR-II/ET 0.8. AWHP TR-II/H AWHP MR-II/H AWHP MR-II/EM AWHP TR-II/ET.0. AWHP TR-II/H AWHP MR-II/H AWHP MR-II/EM AWHP TR-II/ET..8 AWHP TR-II/H Back-up type Output Air conditioning by fan-convectors Electrical by resistance Hydraulic by boiler Heating Cooling single phase three phase (or without back-up) kw () kw () AWHP MR-II/EMI AWHP MR-II/HI.0. Reversible air/water AWHP 8 MR-II/EMI AWHP 8 MR-II/HI 8.. heat pump for outside AWHP MR-II/HI AWHP MR-II/EMI AWHP TR-II/ETI 0.8. temperatures up to AWHP TR-II/HI - C AWHP MR-II/HI AWHP MR-II/EMI AWHP TR-II/ETI.0. AWHP TR-II/HI AWHP MR-II/HI AWHP MR-II/EMI AWHP TR-II/ETI..8 AWHP TR-II/HI () Water flue temp.: + C outside temp.: + C. () Water flue temp.: + 8 C, outside temp.: + C PAC_Q00 Indoor module MIV Additional quantity of heat recovered Free energy Work of the compressor Enthalpy (kj/kg) PAC_F0

3 TECHNICAL CHARACTERISTICS OF THE TECHNICAL SPECIFICATIONS Conditions of use: Use limit temp. in heating mode: Water: + 8 C/+ C Outside air: - C/+ C Use limit temp. in cooling mode: Water: + C/+ C Outside air: + C/+ 0 C Max. operating pressure: bar Model AWHP- MR-II 8 MR-II MR-II TR-II MR-II TR-II MR-II TR-II Heating output () kw Heating COP () Absorbed electrical power () kwe Nominal amperage () A Cooling output () kw Cooling COP (EER) () Absorbed electrical power () kwe Nominal water flow rate at t = K m /h Manometric height available at nominal flow rate mbar Nominal air flow rate m /h Power supply voltage outdoor unit V 0 V~ 0 V~ 0 V~ 00 V~ 0 V~ 00 V~ 0 V~ 00 V~ Start-up intensity A Sound output () db(a) Sound pressure () db(a) 0 0 R 0 A refrigerant kg.. Refrigerant pipe size (liquid-gas) pouce /-/ /8-/8 /8-/8 /8-/8 /8-/8 /8-/8 /8-/8 /8-/8 Max. preloaded piping length m Weight empty outdoor unit kg 0 0 Weight empty indoor MIV-II module kg () Heating mode: outside air temp. + C, water flue temp. + C. () Cooling mode: outside air temp. + C, water flue temp. +8 C. Performance according to with EN -. () m from the appliance, free field. () Test performed according to the standard NF EN 0 Heating output and COP for levels of water flue temperature depending on the outside temperature Water flue temperature Coefficient of performance COP R0A Water flue temperature Heating output in kw 8 0 MR/TR 8 MR/TR MR/TR 8 MR 0 8 MR Outside air temperature in C 8 MR Outside air temperature in C MR/TR MR/TR MR MR/TR MR/TR MR MR/TR MR/TR Cooling output and EER (cooling COP) for level of water flue temperature depending on the outside temperature Cooling output in kw Water flue temperature Energy efficiency rate EER (cooling COP) Water flue temperature MR/TR MR/TR Outside air temperature in C MR/TR 8 MR MR Outside air temperature in C MR/TR MR/TR 8 MR MR MR/TR PAC_F0A

4 TECHNICAL CHARACTERISTICS OF THE ALEZIO heat pumps comprise an outdoor unit and an indoor MIV-II module (InVerter Module). CHARACTERISTICS OF THE INDOOR MIV-II MODULE It incorporates all hydraulic and control components, facilitating installation, and is simple to use. The MIV is available in versions: versions for heating by radiators or underfloor heating/cooling: MIV-II/EM: for additional heating via integrated electrical to kw single phase resistance; MIV-II/ET: for additional heating via integrated electrical to kw three phase resistance; MIV-II/H: for hydraulic back-up by boiler (or without back-up). versions for air-conditioning by fan-convectors: MIV-II/EMI: for additional heating via integrated electrical to kw single phase resistance; MIV-II/ETI: for additional heating via integrated electrical to kw three phase resistance; MIV-II/HI: for hydraulic back-up by boiler (or without back-up). MIV-II/H and E 00 MIV-II/EI: with mounting frame EH MIV-II/HI: with mounting frame EH Model shown: MIV-II/HI 0 PAC_F0 Model shown: MIV-II/H, PAC_F0B Heating return Ø G Heating flow Ø G Boiler flow connection Ø G (MIV-II/H and HI only) Boiler return connection Ø G (MIV-II/H and HI only) Gas refrigeration connection AWHP- MR-II: /" flare AWHP-8 to MR/TR-II: /8" flare MIV-II: /8" flare Liquid refrigeration connection AWHP- MR-II: /" flare AWHP-8 to MR/TR-II: /8" flare MIV-II: /8" flare Components MIV-II/EM and MIV-II/ET MIV-II/H MIV-II/EI 0-litre expansion vessel Automatic air vent Interface board Safety valve bar Stainless steel plate heat exchanger Flowmeter Heating pump speeds Decoupling cylinder Electrical resistance: to kw for MIV-II/EM to kw for MIV-II/ET Connections to boiler PAC_Q0 Refrigeration connections with outdoor unit PAC_Q0 PAC_F08A Model shown: MIV-II/E with front panel removed and control panel titled Model shown: MIV-II//H with front panel removed and control panel titled Model shown: MIV-II/EI preequipped for air-conditioning by fanconvectors (delivered with mounting frame)

5 TECHNICAL CHARACTERISTICS OF THE TECHNICAL CHARACTERISTICS OF THE OUTDOOR UNIT Main dimensions (mm and inches) AWHP MR-II AWHP to MR/TR-II AWHP 8 MR-II 햶 Gas refrigeration connection: - AWHP- MR-II: / flare - AWHP-8 to MR/TR-II: /8 flare PAC_F0088A 0 0 PAC_F00 PAC_F008A 00 햷 Liquid refrigeration connection: - AWHP- MR-II: / flare - AWHP-8 to MR/TR-II: /8 flare Components AWHP 8 MR-II AWHP to MR/TR-II Evaporator Electronic PCB -way valve for cycle inversion Stop valve on the refrigeration connections with outdoor unit Power receiver PAC_Q008 PAC_Q00 Inverter compressor AWHP MR-II Evaporator Electronic PCB Inverter Compressor PAC_Q0 Ventilator

6 THE CONTROL PANEL FITTED TO THE MIV-II/ The control panel fitted to the MIV-II module on ALEZIO heat pumps incorporates an electronic control system used to adapt heating output to the actual needs of the installation according to the outside temperature (sensor provided). To do this, the control system activates modulation of the compressor (via the BUS cable connecting the outside unit to the MIV-II) and, where applicable, manages back-up by the boiler (MIV-II/H) or by the electrical resistance (MIV-II/E). It is used to manage a single direct circuit, which can be a radiator circuit or a low temperature underfloor heating circuit indeed a circuit with fan-convectors and the production of domestic hot water. Moreover, this control system manages the reversibility of the heating in winter/cooling or air-conditioning in summer, and incorporates a power cut-off function and a help mode. To operate in cooling or air-conditioning mode, a wire-controlled or radiocontrolled room temperature thermostat must be connected. THE CONTROL PANEL Large LCD display On/Off switch Menu key Manometer Sweep key Space or reset key Heating temp. adjustment key or key MCR_Q000 Maintenance key or validation key DHW temp. adjustment key or + key CONTROL PANEL OPTIONS Package AD 0 Package AD Q00 8Q0A Programmable wire room thermostat - Package AD Programmable wireless room thermostat - Package AD 00 Non-programmable room thermostat - Package AD 0 The programmable thermostats handle heating control and weekly programming according to various operating modes: Automatic according to the programme, Permanent at a set temperature or Holidays. The wireless version is delivered with a receiver box to be affixed to the wall close to the MIV-II. The non-programmable thermostat can only be used to control the room temperature according to the instruction given. 8Q0 Underfloor heating connection kit - Package HA This cable harness is inserted into the heating pump and includes wiring for connecting a safety thermostat for underfloor heating. EH_Q000 Heating / DHW reversal valve + DHW sensor - Package EH This pack includes a reversal valve with its motor, a DHW sensor, a -pin connector for the DHW sensor and a -pin connector for the reversal valve motor. This valve is used to connect the MIV- II to a DHW tank for the production of domestic hot water (BL for example).

7 OPTIONAL EQUIPMENT FOR THE ALEZIO HEAT PUMP Electrical heater for condensate drain and condensate tray - Package EH This kit is used to prevent condensates freezing. PAC_Q00 PAC_Q00 PAC_Q000A Screen filter 00 μm + gate valve - Package EH This filter is used to protect the water exchanger in the heat pump against impurities. AWHP wall mounting bracket + anti-vibration studs - Package EH This kit is used to mount the outdoor unit of the AWHP to the wall. It comes with anti-vibration studs to limit the transmission of vibrations into the ground. PAC_Q000 Condensate tray tank for wall bracket - Package EH In solid plastic, this kit is used to recuperate condensates from the outdoor unit. It can be fitted to the wall mounting bracket package EH. PAC_Q008 Floor support - Package EH Support in hard wearing PVC, for mounting the outside unit on the ground. The screws, washers and nuts are provided for quick and easy mounting. PAC_Q00 Refrigeration connection kit /8 - /8 length m - Package EH length 0 m - Package EH length 0 m - Package EH Insulated high quality copper pipe to limit heat loss and condensation. Refrigeration connection kit / - / length 0 m - Package EH EH 0 EH 8 8Q0 PAC_Q00 Buffer tank: B 80 T - Package EH 8 / B 0 T - Package EH 0 The 80 and 0 liter tanks are use to limit E.g.: Heat pump output = 0 kw operation of the compressor in short cycles and Min volume in the installation: 0 litres to provide a reserve for the defrosting phase on Dimensions of buffer tanks: reversible Air/Water heat pumps. - B 80 T: H 80 x L 0 x P 0 mm It is also recommended for all heat pumps - B 0 T: H 00 x Ø 0 mm connected to installations in which the water volume is less than l/kw in heating output. EH 8 EH PAC_F088 PAC_F08 Mounting frame: - for MIV-II/EI - Package EH - for MIV-II/HI - Package EH 8 These mounting frames are delivered with isolating valves and enable quick and easy mounting of the MIV-II.

8 OPTIONAL EQUIPMENT FOR THE ALEZIO HEAT PUMP: BL CALORIFIERS MODELS Capacity (litre) Model 0 BL 0 880Q0B Independent DHW calorifiers BL 0 to BL BL 00 PRESENTATION BL independent hot water tanks coupled with a heat pump are used to produce domestic hot water for individual residences. They are made of very thick sheet steel allowing a maximum DHW operating pressure of 0 bar. Their interior is protected by food quality standard high quartz content vitrified enamel and by a magnesium anode. The insulation is made of CFCfree injected polyurethane foam, 0 mm thick. The tanks are fitted with a drainage outlet in the bottom of the tank. H PRINCIPAL DIMENSIONS (in mm and inches) Ø G F E J A B C D E F Ø G H J BL BL BL Domestic hot water outlet G Exchanger inlet G Circulation G / Cold water inlet G Exchanger outlet G D C B A BL BL 0 Drainage G Anode Emplacement DHW sensor G: cylindrical external thread (water tightness by flat gasket) BL_F000 TECHNICAL DATA AND PERFORMANCE Maximum operating temperature: - primary (exchanger): 0 C - secondary (tank): 0 C Maximum operating pressure: - primary (exchanger): bar - secondary (tank): 0 bar Model BL 0 BL 00 BL 00 Calorifi er capacity l Exchange surface m Exchanger capacity l at temp. Primary inlet temp. C outlet Exchanged output kw 0... DHW = C Hourly fl ow at ΔT = K l/h Cooling constant Wh/ h.k.l DHW losses through the outer casing at ΔT= K W 0 88 Net weight kg In order to optimise domestic hot water performance, we recommend combining certain HP outputs with certain tanks.. The recommended combinations are as follows: AWHP MR-II AWHP 8 MR-II AWHP MR-II AWHP MR-II AWHP MR-II BL 0 BL 00 BL 00 Combination recommended Combination not recommended Note: an example of an installation using an ALEZIO HP in combination with a BL type DHW tank can be found on page. OPTIONS FOR BL CALORIFIERS: Anode AM 8Q0 Inert electrical anode with self-adapting current Package AJ 8: for BP/BL 0 to 00 The self-adapting current anode consists essentially of a titanium, platinum-coated rod powered at low voltage. Its advantage over a traditional magnesium anode is that the material is free of wear. Therefore it does not need to be monitored as its life span is practically unlimited. The self-adapting current anode is mounted in the lateral flange, in the place and instead of the magnesium anode; for BP/BL 00 to 00 DHW calorifiers with anodes, the nd anode should also be removed and the opening plugged (kit delivered with the anode). The imposed current anode is delivered with a cable. m long and a transformer which can be plugged into a 0 V socket, to be fitted close to the DHW calorifier. Important: The self-adapting current anode is not compatible with the installation of a shielded electrical resistor.

9 OPTIONS FOR BL CALORIFIERS EG 88 EC 880Q0A 880Q PAC_Q0 Electrical resistors on flange Ø 8 mm (BP/BL 0 to 00) -. kw single, shielded: Package EC 0 -. kw multi-voltage, steatite: Package EC -.0 kw multi-voltage, steatite: Package EG kw multi-voltage, shielded: Package EC These resistors are fitted to a flange in the place and instead of the existing lateral flange. They are equipped with a safety thermostat and are powered independently of the DHW control system on the boiler circuit. NB: When the DHW calorifier is equipped with such a resistor, it is necessary to fit a -bar safety valve to the primary circuit. This valve must be placed between the exchanger and the gate valves in the DHW calorifier. HP/DHW tank hydraulic connection pack - Package EH This pack, comprising ribbed, insulated stainless steel pipes, is used to connect the MIV-II to a DHW tank (length: 0 mm). SIZING A HEAT PUMP INSTALLATION A heat pump must be accurately sized. Indeed, the choice of an appliance with too high an output considerably increases the cost of the installation without providing savings on consumption and the risk of short-cycle operation increases accordingly. The choice Important: Fitting a shielded electrical resistor is not compatible with using a self-adapting current anode. If fitting a steatite resistor, on the other hand, the installation of a self-adapting current anode is essential to guarantee sufficient anti-corrosion protection in the tank. of an appliance with too low an output also leads to excessive energy consumption caused by very long periods of operation of the appliance. It is therefore imperative in the first instance to make an accurate calculation of losses from the home. PROCEDURE FOR CALCULATING LOSSES FROM AN INDIVIDUAL HOME The losses from an individual home can be calculated using the procedure set out in the following Note: this calculation method is given as a rough guide and in formula: no way replaces a thermal survey. De Dietrich s liability may in no D = G x V x ΔT where D = Losses in W V = Habitable volume in m ΔT = Difference between the indoor temperature and the basis outdoor temperature G = Coefficient based on the insulation of the building in W/m. C Example: for an individual home of 0 m (ceiling height. m) with basis outdoor temperature - C constructed after 0, the losses are: D =. x [(0 m x. m) x (0 C - (- C)] = 8 W, i.e.. kw event be invoked. Type of house G in W/m. C Old with no insulation Old with insulation. After 0. After After Very good insulation 0. Bioclimatic 0. SIZING AIR/WATER HEAT PUMPS Air/Water heat pumps alone cannot compensate for the heat loss from a home as their output diminishes when the outside temperature falls and they shut down altogether at the so-called shutdown temperature. This temperature is - C for our AWHP range. Electric or hydraulic boiler back-up is then necessary. The balance point temperature corresponds to the outside temperature at which the output of the heat pump is equal to the heat losses. Tbasis = Basis outside temperature, Teq = Balance point temperature, Tstop = Shutdown temperature For optimum sizing, we recommend observing the following rules: - 0% of heat losses m Heat pump output at To 80% of heat losses where To = Tbasis if Ts Tbasis and To = shutdown if the opposite is the case - heat pump output at Tbasis + Back-up Output = 0% of heat losses Output losses 00% Auxiliary heating only House heat lossesline Auxiliary heating + HP Theoritical output curve of the HP HP only Outputs used Available outputs from the HP Tbasis Tstop T eq Outside temperature in C By following these sizing rules, we obtain, depending on the case, rates of cover ranging from approx. 80% to more than 0%. For more detailed calculations, you can use our DiemaPAC calculation tool available on the Pro page of the website: PAC_F000A

10 SIZING A HEAT PUMP INSTALLATION TABLE FOR SELECTING SINGLE PHASE AWHP MR-II MODELS FROM THE ALEZIO RANGE Heat losses in kw MR + MR + MR + MR + 8 MR + - MR + MR + MR + MR MR + MR + - MR + 8 MR + MR + MR + MR + MR + MR MR + MR MR MR + MR+ MR + MR MR + 8 MR + MR + -8 MR + MR + - MR + MR + -0 MR + MR + MR + - MR + MR + MR+ 8 MR + MR + MR MR + - MR + 8 MR + MR + - MR + MR + 8 MR + MR+ MR MR MR MR+ MR+ 8 MR+ 8 MR MR + 8 MR + 0 MR + MR + MR + MR + MR + MR + MR + 8 MR + 0 MR + MR + MR + MR with Tbasis in C TABLE FOR SELECTING THREE PHASE AWHP TR-II MODELS FROM THE ALEZIO RANGE Heat losses in kw with Tbasis in C TR TR + TR + TR + TR + TR + TR + TR + +..: minimum electrical or hydraulic back-up required in kw with hydraulic back-up only TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + TR + 8 TR + 8 TR + 0 TR + TR + TR + TR + Comments: - the losses must be precisely calculated without oversizing coefficient +, + corresponds to the minimum electrical or hydraulic back-up required in kw, - the electrical back-up is kw max. and requires a three phase power supply ( kw max. in single phase), - in installations with boiler back-up, it is possible to select a slightly undersized single phase heat pump instead of a three phase heat pump, on the understanding that it is tricky with renovation projects to change a single phase into a three phase junction box, - beneath the outside temperature from wich the heat pump stops (- C) only the additional back-ups provide heat. 0

11 INFORMATION REQUIRED FOR INSTALLATION INSTALLING ALEZIO HEAT PUMPS - The outdoor units of ALEZIO heat pumps should be installed close to the house, on a terrace, on the façade or in a garden. They are designed to operate in the rain but can also be installed under cover as long as there is sufficient ventilation. There should be no obstacles to hinder the free circulation of air to the exchanger inlet and outlet (see installation diagrams below). - The emplacement of the outdoor unit should be carefully chosen and protected from prevailing winds in order for it to be compatible with environmental requirements: integration into the site, noise level. We particularly recommend: Not placing the outdoor unit close to sleeping areas Not placing it opposite a glazed wall Avoiding proximity to a terrace Moreover, we recommend positioning the unit above the average depth of snowfall in the region in which it is installed. - It is necessary to provide clearance all around the appliance to carry out connection, commissioning and maintenance operations A Indoor module MIV-II AWHP MR-II 8 MR-II to MR/TR-II A (mm) 00 0 PAC_F00A MINIMUM INSTALLATION DISTANCES TO BE OBSERVED (mm) in red: AWHP /8 MR-II in blue: AWHP to MR/TR-II Max (0) 00 (00) 00 (000) 0 (0) 000 (00) Max (00) 0 (0) 00 (0) 00 (00) 00 (00) 00 (00) 0 (0) 00 (000) PAC_F00 MAXIMUM DISTANCES AND QUANTITY OF REFRIGERANT FLUID TO BE LOADED - Maximum connection distance L between the MIV-II and the HEAT PUMP (in metres) AWHP MR-II 8 MR-II MR/TR-II MR/TR-II MR/TR-II L (m) 0 0 Important: if the refrigeration link between the outdoor unit and the indoor module is less than m long, noise pollution caused by the circulation of the refrigerant fluid may occur. If this is the case, fit a refrigeration link at least m in length by making one or two horizontal connection loops in order to limit noise and oil traps. Additional load of refrigerant fluid for a Model distance > 0 m from from from from to 0 m to 0 m to 0 m to m AWHP MR-II AWHP 8 MR-II AWHP -- MR/TR-II B: 0 m max C: elbows max C B L Outdoor unit Indoor MIV-II module PAC_F008A

12 INFORMATION REQUIRED FOR INSTALLATION REFRIGERATION CONNECTION The commissioning of ALEZIO heat pumps includes operations on the refrigeration circuit. Appliances must be installed, commissioned, maintained and repaired by qualified, authorised personnel, pursuant to the requirements of prevailing directives, laws and regulations and in accordance with the codes of practice of the profession. Refrigeration connection: The refrigeration connection between the outdoor unit and the indoor module is made using cold quality copper piping. The polished, deoxidised, cleaned and dehydrated copper pipe is delivered in bars or coils and its ends are sealed. The copper pipe is insulated with a suitable form of insulation resistant to high temperatures in a thickness appropriate to its diameter. The connections of the refrigeration link to the outdoor unit and the indoor module are done by making dudgeons with flared fittings. If the pipes have to be lengthened, the brazes are done under nitrogen and with silver brazing rods. Diameters, height differences and the length of the refrigeration link between the outdoor unit and the indoor module must comply with the manufacturer s recommendations. Watertightness inspection: When the refrigeration link has been completed, the role of the watertightness inspection is to ensure that there are no leaks and that it will withstand the various operating pressures to which it will be subjected. The watertightness inspection is done with dehydrated nitrogen. The test pressure is bar to start with and is then increased by raising the nitrogen loading in increments of bar until a total pressure of bar is obtained for the R0A. The watertightness test is done using a thousand particle aerosol. ELECTRICAL CONNECTION The electrical installation of heat pumps must be done in accordance with the local and national Codes of Practice and pursuant to prevailing standards, decrees and subsequent texts. Recommended cable cross-sections and circuit breakers to be installed: PAC Type Output electrical absorbed phase Intensity nominal Start-up intensity Max. intensity Evacuation: Evacuation is intended to eradicate air and humidity present in the refrigeration link. Air and humidity have an undesirable effect in the refrigeration circuit as the pressure increases in the system, the absorbed output increases, the efficiency of exchanges diminishes and corrosion of certain components is possible. Evacuation is done with a vacuum pump and a vacuum gauge to ensure the accuracy of the vacuum achieved. The duration of evacuation depends on the cleanliness of the circuit and may take several hours. After evacuation, precautions are taken to prevent the infiltration of humidity into the refrigeration circuit. Loading the refrigerant fluid: Loading a system consists in filling it with a quantity of refrigerant fluid giving the flow rate required for the correct operation of the heat pump. The outdoor units are preloaded in the factory and include a maximum distance for the refrigeration link. If the distance is greater than the maximum distance, it is necessary to add a further load. Annual watertightness inspection (in accordance with the local and national codes and regulations): This inspection is mandatory for all machines containing more than kg of refrigerant fluid in accordance with prevailing regulations. The annual watertightness inspection is mandatory for all ALEZIO heat pumps. Commissioning and maintenance: In order to make the most of the performance of heat pumps and extend their useful life, De Dietrich proposes a commissioning and maintenance service for the ALEZIO range. The cable will be carefully chosen according to the following information: - maximum amperage on the outdoor unit (thermodynamic unit). See the table below, - distance of the appliance from the original power supply, - upstream protection, - neutral operating conditions. Power supply Heat Pump SC: mm Curve D* DJ: Power supply MIV-II SC: mm Curve C DJ: kw A A A AWHP MR-II Single.0.8 x. A x. 0 A x. 8 MR-II Single.0. x A x. 0 A x. MR-II Single.. 8 x A x. 0 A x. TR-II Three.. x. A x. 0 A x. MR-II Single x A x. 0 A x. TR-II Three x. A x. 0 A x. MR-II Single.0. x 0 0 A x. 0 A x. TR-II Three.0 0. x. A x. 0 A x. Electrical back-up MONO:. or kw SC x mm DJ Curve C, A TRI:, or kw SC x. mm DJ Curve C, 0 A SC = cable cross-section in mm DJ = circuit breaker * Motor: Curve D - Differential protection Cable BUS SC: mm

13 INFORMATION REQUIRED FOR INSTALLATION HYDRAULIC CONNECTION The indoor MIV-II module on ALEZIO heat pumps is fully equipped for the connection of a direct circuit (radiators, Available manometric height for the heating circuit at the outlet of the module MIV-II (AWHP /8 MR-II) equiped with the GRUNDFOS UPS -0 pump: underfloor heating or fan-convectors): circulating pump, expansion vessel, heating safety valve, pressure gauge, air vent Available manometric height for the heating circuit at the outlet of the module MIV-II (AWHP // MR-TR-II) equiped with the GRUNDFOS UPS -0 pump: Pressure in mh O 8 III II I 0 0,0 0,,0,,0 PAC_F08 Pressure in mh O 8 I II 0 0,0 0,,0,,0,,0,,0 III PAC_F08 Note: As ALEZIO heat pumps are of the SPLIT INVERTER type with refrigeration link between the outdoor unit and the MIV-II module, it is not necessary to add glycol to the installation. Flow rate in m /h Flow rate in m /h Important comments regarding: The various emitters: The water outlet temperature on heat pumps is limited: C max. for AWHP. It is therefore imperative that they operate on low temperature emitters, i.e. underfloor heating/cooling or radiators sized at low temperature. For the cooling mode, only underfloor heating with compatible flooring and floor covering is suitable. It is also necessary that the underfloor cooling flow temperatures be respected, depending on the geographical location, to prevent the phenomenon of condensation (between 8 C and C). Refrigerant fluids: R0A refrigerant fluid has properties suitable for heat pumps. It belongs to the family of HFCs (hydrofluorcarbons), composed of chemical molecules containing carbon, fluorine and hydrogen. It does not contain chlorine and therefore does not damage the ozone layer. Storage tank The installation of a storage tank is recommended for installations in which the water volume is less than l/kw in heating output on the heat pump (remember to factor in the l in the MIV-II). It is intended: - on the one hand, to increase the water volume in an installation in order to limit the short-cycle operation of the compressor. The greater the water volume, the lower the number of startups of the compressor and the longer its useful life. - on the other hand, to guarantee an energy reserve for the defrosting phases. Filters In order to protect the exchanger on the MIV-II, installation of the filter is mandatory. The filter + gate valve unit (package EH ) can be delivered as optional. The cooling or air-conditioning mode So-called reversible heat pumps are used to produce a cooling effect in summer. A -way valve, called a cycle inverter valve, switches the cycle from heating mode to cooling mode. The compressor intake is thus linked to the indoor exchanger, which therefore becomes the evaporator. The compressor backflow is thus linked to the outdoor exchanger, which therefore becomes the condenser. Note: For Air/Water type heat pumps, this -way valve is also used for the defrosting phase on the evaporator. In the case of an installation with underfloor heating/cooling (outlet and return water temperature : +8 C/ C), the refrigeration output is limited, but sufficient to keep the home pleasantly comfortable. On average, it allows the ambient temperature to be reduced by to C. With an installation with fan-convectors (outlet and return water temperature : + C/ C) it is compulsory to use the HI or EI versions.

14 SET < > Dietrisol B EXAMPLES OF ALEZIO HEAT PUMP INSTALLATIONS The examples presented below cannot cover the full range of installation scenarios that may be encountered. Their purpose is to draw the attention to the basic rules to be followed. A certain number of control and safety devices are shown but it is ultimately up to experts, consultant engineers and design departments to take the final decision on the safety and control devices to be used in the boiler room according to its specificities. In all cases, it is necessary to abide by the codes of practice and prevailing regulations. ALEZIO- heat pump with indoor MIV-II/E module, with electrical back-up - direct underfloor heating circuit - DHW production by independant BL boiler - Cooling mode possible AD MIV-II/E a HA 0V or 00V 0Hz 0V or 00V 0Hz EH EH * EH M EH BUS 0 8 EH EH 8 0 EH AWHP MR * This package is delivered with ALEZIO AWHP MR-II BL.. PAC_F08G ALEZIO- heat pump with indoor MIV-II/EI module, with electrical back-up - direct fan convector circuit - DHW production by BESC... E electrosolar DHW tank - Air conditioning mode possible AD MIV-II/EI EH ** 0V or 00V 0Hz a HA 0V or 00V 0Hz EH EH * 0V or 00V 0Hz BUS 0 8 EH 0V 0Hz AWHP MR PAC_F0B EH Note: The conduits going to the fan convector units must be insulated. * This package is delivered with ALEZIO AWHP MR-II ** delivered with MIV-II/EI, to be mounted Key see page

15 EXAMPLES OF ALEZIO HEAT PUMP INSTALLATIONS ALEZIO- heat pump with indoor MIV-II/H module, with boiler back-up - direct underfloor heating circuit - DHW production by the boiler - Cooling mode possible MIV-II/H AD a HA Existing installation 0V 0Hz EH + EH EH 0V or 00V 0Hz EH BUS EH 0 8 0V 0Hz M AWHP.. MR/TR 0 8 Floor standing -service boiler PAC_F08D ALEZIO- heat pump with indoor MIV-II/H module, with boiler back-up - direct radiator circuit - DHW production by the boiler - Cooling mode not possible MIV-II/H AD a HA Existing Installation 0V 0Hz EH + EH EH 0V or 00V 0Hz EH BUS EH 0 8 0V 0Hz M AWHP MR/TR 8 0 PAC_F0 Key see page

16 EXAMPLES OF ALEZIO HEAT PUMP INSTALLATIONS ALEZIO- heat pump with indoor MIV-II/H module, with boiler back-up, B 80 T storage tank with bypass - direct "radiator" circuit - DHW production by independant BL boiler - Cooling mode not possible AD MIV-II/H a Existing Installation 0V or 00V 0Hz B80T EH EH 0V 0Hz BUS M 0V 0Hz EH EH + EH /H EH GTU 0 EH EH 0 8 BL.. PAC_F00B Key -bar safety valve Pressure gauge a Flowmeter Automatic air vent Isolation valve 0 -way mixing valve Heating pump Expansion vessel 8 Filling device Outside sensor Load pump Non-return valve DE DIETRICH THERMIQUE S.A.S. with corporate capital of 8 0, rue de la Gare - F - 80 Mertzwiller Tel Fax Domestic cold water inlet Pressure reducer 0 Sealed safety device calibrated to bar DHW loop back pump Decoupling cylinder C manual reset safety thermostat for underfloor heating 0 Disconnector Thermostatic valve Differential valve Thermometer Direct heating circuit: radiators Direct heating circuit:underfloor heating 8 Electrical resistance 8 Stop valve with unlockable nonreturn valve 8 Primary solar circuit pump 8 Safety valve calibrated to bar 88 Solar circuit expansion vessel 8 Container for solar fluid 0 Thermostatic mixer tap a Solar collector sensor b Solar DHW tank sensor Primary solar circuit filling and draining circuit Thermostatic distribution valve per zone -way reversal valve Solar control system Duo-pipes 0 Degasser with manual vent Collector field Filter + gate valves Motorised -way valve Important Recommendations In order to make the most of the performances of heat pumps for optimal comfort and to maximise their useful life, we recommend that you pay particular attention to their installation, commissioning and maintenance ; to do this, abide by the various instructions that come with the appliances. In addition, the De Dietrich catalogue offers a commissioning service for heat pumps ; we also strongly recommend that you take out a maintenance contract. 0/0 000B.. Strasbourg Companies Register Document not contractually binding - Printed in France - OTT Imprimeurs 0 Wasselonne - 08